Coupling adaptor ring for a night vision device



FIG. 1 is a front perspective view of a coupling adaptor ring for a night vision device showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof; and,

FIG. 4 is a side elevational view, the opposite side is a mirror image.

The broken line showing of the night vision device in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a coupling adaptor ring for a night vision device, as shown and described. 